<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>textarea文本域</title>
</head>
<body>
    <h2>textarea文本域用于输入多行文字</h2>
    <h3>cols每行字数，row行数</h3>
    <form action="">
        今日反馈：
        <textarea name="" id="" cols="100" rows="20">这是默认的文字</textarea>
    </form>
</body>
</html>